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The
Scanivalve Model SPC3000 pressure calibrator/controller accurately
regulates and measures pressures from vacuum to 750 psi.
The combination of Scanivalve’s servo system and
Paroscientific’s high precision Digiquartz®
Pressure Transducers provide accurate, reliable, and stable
pressure measurements and control. The calibrator is ideally suited for gas turbine test cells
and aerodynamic wind tunnels.
Scanivalve
developed the SPC3000 high speed precision pressure
calibrator/controller to address the need to quickly calibrate our ZOC pressure scanners. The
ZOC pressure scanners contain 32 or 64 piezoresistive pressure
sensors that are used to measure pressures in a wind tunnel.
In order to be very small, compact and cost effective, the
pressure sensors are not thermally compensated. These
piezoresistive sensors are very repeatable but are
temperature sensitive and require frequent calibration for optimum
performance. Scanivalve developed the Model SPC3000 pressure
calibrator as an on-line method of calibrating these ZOC pressure
scanners.
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The
SPC3000 is a 19 inch rack mounted intelligent pressure
calibrator with an RS-232 serial interface. It incorporates
leak-tight solenoid valves, a servo valve, processor, and a
Digiquartz® Pressure Transducer. Since the wind tunnel models
are remotely located from the pressure calibrators, one of
the design specifications is to have a high-flow calibrator
to regulate the set pressure very
quickly. The accurate Digiquartz® transducers work well
in this application because they can be interrogated at 13 Hz in order to
control our servo valve. This calibrator has been part of
Scanivalve’s product line for the past 18 years and used
with success at all of our customers worldwide.
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The
Model SPC3000 provides an economical approach to automatic on-line
calibrations of our ZOC pressure scanners, as well as our line of Ethernet-based pressure modules, and individual pressure
transducers. Scanivalve’s pressure calibrators along with Paroscientific’s
Digiquartz® transducers provide the 0.01% accuracy required by
today's research facilities.
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